exception in thread main java lang error unresolved compilation problem

BInitializeInitialize ListInitial Constructor That is, the static variable is used before the initialization of a static variable is executed. The program to reproduce the ExceptionInInitializerError exception is as follows: 1 package com. lang. ininitialException; 2 3 import java. util. arrayList; 4 import java. util

The more JVM memory, the less threads can be created, the more likely java. lang. OutOfMemoryError: unable to create new native thread ., I. Understanding: First, we will understand this problem through the following test program:Running Environment (it is worth noting that different environments have different results

of the extension package for compilation. It also compiled the cocos2dx-3.9's official test-cpp/lua to android run, found that all continue to report errors. I suddenly realized it with a message from my colleagues. In fact, Himi is much less than Android development. Jar is introduced. Then I took the following steps to re-introduce the android-async-http-x.x.x.jar: Right-click libs under the android project and choose import> General> File System>

A small struts2 program debugging fails after devmodel is changed to true, Severe: exception starting filter struts2Java. Lang. nullpointerexceptionAt com. opensymphony. xwork2.util. filemanager $ filerevision. needsreloading (filemanager. Java: 209)At com. opensymphony. xwork2.util. filemanager. fileneedsreloading (filemanager.

:597) at TestNativeOutOfMemoryError.main(TestNativeOutOfMemoryError.java:20) Ii. analyze the problem: The root cause of this exception is that we have created too many threads, and the number of threads that can be created is limited, resulting in exceptions. The formula for calculating the number of threads that can be created is as follows:(Maxprocessmemory-jvmmemory-reservedosmemory)/(threadstacksiz

Environment: eclipse3.3.0 + myeclipse5.5.1ga (spring2.0 + struts1.1 + hibernate3.1) The error is: Java. Lang. nosuchmethoderrorCode:15:20:54, 093 error contextloader: 203-context initialization failedOrg. springframework. beans. factory. beancreationexception: Error creating

$ http11connectionhandler. Process (http11protocol. Java: 583)At org.apache.tomcat.util.net. jioendpoint $ worker. Run (jioendpoint. Java: 447)At java. Lang. thread. Run (unknown source)2010-7-20 23:35:43 org. Apache. Catalina. Core. standardwrappervalve invoke 2. This

[Android] java. lang. NumberFormatException: Expected an int but was 53.81 at line 1 column 782 exception cause analysis, [Android] java. lang. NumberFormatException: Expected an int but was 53.81 at line 1 column 782 exception

The external android project is imported to ecplise. The compilation is normal and an error is returned. The logcat is as follows: 12-19 10:55:25. 915: E/AndroidRuntime (2929): fatal exception: main12-19 10:55:25. 915: E/AndroidRuntime (2929): java. lang. noClassDefFoundErro

Reason: Unknown, may be caused by the upgrade idea, previously played an upgrade patch;Error message:Information:java:javacTask: Source release 1.8 requires target release 1.8INFORMATION:2017/1/24 11:27-compilation completed with 1 error and 0 warnings in 5s 873msInformation:java:Errors occurred while compiling module ' java